Cross chain



Patented June 24 1930 WILLIAM J. BUYER, or wrmvrmeiron;DELAWARE 'cnosscan-a Application filed June 16,

The invention relates to cross chains for anti-skid chains for vehiclewheels and has as an object the provision of a cross chain which willhave a maximum resistance to skidding,

5 and'which will providean effective protection of the links ofthe'chain against wear.

Further objects of the invention will appear from the followingdescription when read in connection with the I accompanying 1 drawingshowing an illustrative embodiment vof'the invention and wherein,

Fig. 1 is a plan View.

Fig. 2 is a side elevati chain. 7

Fig. 3 is a detail plan view, and 1 Fig. 4 is a detail side el 'vationof a mode fication. I j

-As will be readily, understood by onof a single cross drawing isintended to be attached by means of hooks 10,"to side chains runningcircumferentially of the wheel, a plurality of chains such as thatillustrated beingused upon each Y preferably formed of round materialbent into annular form surrounding the wire of the links 11. It isessential that the rings 12 be free for revolution'upon the wire'of' thelinks 11 in order that the wear upon the circumference of the rings, maybe distributed throughout the outer surface thereof. The

wear upon the links 11 as heretofore commonly' used has been entirelyupon the surface of the links in one place where the same contact- 40 edwith the road surface with the result that the links were quickly wornthrough at this place and thechain became useless. With the presentinvention while the rings would wear through as quickly as the linksofithe chain have done if they were motionless upon the links, yet byreason of their freedomfor revolution and the consequent distribution ofthe wear evenly about the circumference, the

' life of each ring is many times that of the links as heretofore used.

7 those "skilled in the art, the chain f shown 1111 the f 1923. SerialNo. 645,795.

" The rings =are'placed upon the portion of 1 the links which is raisedfrom the bottom surface as shown in Figure 2, sothat said bottom surface'ofthe completed chain is substantial *ly smooth, the diameter of thematerial of -51 the rings being substantially equal to thatfof the wireof the links andtherefore 'extendq in downward from its position uponthe link su stantial ly to a level with the portion-of the next linkengaged with the link in question 3 adjacent to' the position of thering thereon In otherwords'both the ring and the link be ing ofsubstantially the same diameter, and

both engaging the link-upon which the ring is seated,'wi-llproj ectdownward therefrom 3 i an equal distance; This being true of'e'achof therings as I related to the adj acent link, the surface of the chain incontact'withth'e tire will be comparatively smooth. This relation "of;ring tolink not only provides a Sateen- 54 'tially smoeth 'surface uponthe lower side as sh'ownin Figure 2, which in use is placed Contact withthe tire, but also results in a :rid'ged' 'surfaee upon-the oppositeside ofthe chaimfcom-posed, where it contacts with the "11. lro a'dsur'faceg'entir lyjoff the'rings 12. Y r Assho'wni nFiguresB and 4, apluralityof rings may be placed-upon each "side of each linkh Inthismodification the rings 12 can be substantially like the rings 12. Sincethe 3' rings 13 must be placed upon a portion of the link 11-, differingin elevation from the line shownas a base in Fig. 4 from the position ofrings 12, the diameter of the material of the rings 13 must be differentfrom that of rings 12' when placed as shown in Figs. 3 and 4. With therings 13 at a higher point upon the side of the link the diameter of thering 13 must be less in order to bring its upper surface in the plane ofthe top of rings l2'.'- g0 1 The essential requirement in the use of aplurality of rings is that theyshall be of difierent diameter tocompensate for the vari- V f ation of their position upon-the links. I ea When the wheel, equipped with cross chains embodying the invention,attempts to skid, the rings will bind with each other and each ring willassume an angular position upon. the wire ofthe link upon which it isplaced so as to bind thereon, thus providing an efii- "100 i V 7 I1,766,218

cient grip for the tire upon the road surface. Since thewir'e whichserves as an axis for revolution of the rings is not parallel to the"road surfac'e 'nor directly perpendicular to the lineofr travel of thevehicle, it results that When'the rings are in contact With the roadsurface they Will be prevented from 'free v revolution upon the linksandlwilltherefore provide an eflicient grip upon the road for Htransmission of driving or braking stresses I I claim:

, o ing in diameter whereby the rings may fall i 7 into a common planewith each other. e 2. A cross chain comprising incombina- I j tion; alink a'ring tiltably mounted on a ,side of'said link and having aninternal Idi 2 ameterso related to; the gauge of-the mate-Qtiltedthereon. I

cross'chain comprising, in combinw tion, a'twisted link aring revolublyandtilt -'i rial of the link asto bind therewith when 7' aofablymountedona side of saidlink, the in- -ternaldiameter of the ring beingso related v to the gauge of the material o fthe -linkasto V pause-thering to bindtherewith Whentilted vI thereon.

' f35 4.;A crosschain comprisingfincombination,l.an elongated, link, aring tilt ably ;mounted "on eachside :of said link the ini V eternaldiameter of each ring so related-to the U gauge ofthe material of thelink-asto ca'u'se the ring to grip the linklwhen ti1ted;f' th'e gaugeofthe materialbf; said rings being i I more than one-half of the distancebetween the sides of the link. 1' I .r r a WILLIAM J. .B'QYER;

